def encode(self):
        ''' Encodes response pdu

        :returns: The encoded packet message
        '''
        result = pack_bitstring(self.bits)
        packet = struct.pack(">B", len(result)) + result
        return packet
Beispiel #2
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    def execute(self, *args):
        ''' Execute the diagnostic request on the given device

        :returns: The initialized response message
        '''
        #if _MCB.isListenOnly():
        register = pack_bitstring(_MCB.getDiagnosticRegister())
        return ReturnDiagnosticRegisterResponse(register)
Beispiel #3
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    def execute(self, *args):
        ''' Execute the diagnostic request on the given device

        :returns: The initialized response message
        '''
        #if _MCB.isListenOnly():
        register = pack_bitstring(_MCB.getDiagnosticRegister())
        return ReturnDiagnosticRegisterResponse(register)
Beispiel #4
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    def encode(self):
        ''' Encodes response pdu

        :returns: The encoded packet message
        '''
        result = pack_bitstring(self.bits)
        packet = struct.pack(">B", len(result)) + result
        return packet
Beispiel #5
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    def encode(self):
        ''' Encodes the status bits to an event message

        :returns: The encoded event message
        '''
        bits = [False] * 3
        bits += [self.overrun, self.listen, self.broadcast, True]
        packet = pack_bitstring(bits)
        return packet
Beispiel #6
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    def encode(self):
        ''' Encodes the status bits to an event message

        :returns: The encoded event message
        '''
        bits  = [False] * 3
        bits += [self.overrun, self.listen, self.broadcast, True]
        packet = pack_bitstring(bits)
        return packet
    def encode(self):
        ''' Encodes write coils request

        :returns: The byte encoded message
        '''
        count   = len(self.values)
        self.byte_count = (count + 7) / 8
        packet  = struct.pack('>HHB', self.address, count, self.byte_count)
        packet += pack_bitstring(self.values)
        return packet
    def encode(self):
        ''' Encodes write coils request

        :returns: The byte encoded message
        '''
        count = len(self.values)
        self.byte_count = (count + 7) / 8
        packet = struct.pack('>HHB', self.address, count, self.byte_count)
        packet += pack_bitstring(self.values)
        return packet
Beispiel #9
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    def encode(self):
        ''' Encodes the status bits to an event message

        :returns: The encoded event message
        '''
        bits = [self.read, self.slave_abort, self.slave_busy,
            self.slave_nak, self.write_timeout, self.listen]
        bits  += [True, False]
        packet = pack_bitstring(bits)
        return packet
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    def add_bits(self, values):
        ''' Adds a collection of bits to be encoded

        If these are less than a multiple of eight,
        they will be left padded with 0 bits to make
        it so.

        :param value: The value to add to the buffer
        '''
        value = pack_bitstring(values)
        self._payload.append(value)
Beispiel #11
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    def add_bits(self, values):
        ''' Adds a collection of bits to be encoded

        If these are less than a multiple of eight,
        they will be left padded with 0 bits to make
        it so.

        :param value: The value to add to the buffer
        '''
        value = pack_bitstring(values)
        self._payload.append(value)
Beispiel #12
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    def encode(self):
        ''' Encodes the status bits to an event message

        :returns: The encoded event message
        '''
        bits = [
            self.read, self.slave_abort, self.slave_busy, self.slave_nak,
            self.write_timeout, self.listen
        ]
        bits += [True, False]
        packet = pack_bitstring(bits)
        return packet
Beispiel #13
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    def fromCoils(klass, coils, endian=Endian.Little):
        ''' Initialize a payload decoder with the result of
        reading a collection of coils from a modbus device.

        The coils are treated as a list of bit(boolean) values.

        :param coils: The coil results to initialize with
        :param endian: The endianess of the payload
        :returns: An initialized PayloadDecoder
        '''
        if isinstance(coils, list):
            payload = pack_bitstring(coils)
            return klass(payload, endian)
        raise ParameterException('Invalid collection of coils supplied')
Beispiel #14
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    def fromCoils(klass, coils, endian=Endian.Little):
        ''' Initialize a payload decoder with the result of
        reading a collection of coils from a modbus device.

        The coils are treated as a list of bit(boolean) values.

        :param coils: The coil results to initialize with
        :param endian: The endianess of the payload
        :returns: An initialized PayloadDecoder
        '''
        if isinstance(coils, list):
            payload = pack_bitstring(coils)
            return klass(payload, endian)
        raise ParameterException('Invalid collection of coils supplied')